The GLV18-55-S/59/102/159 represents a specific model within the broad category of photoelectric sensors, designed for reliable object detection across various industrial environments. This device operates on the principle of converting light signals into electrical changes to sense the presence, absence, or position of objects without physical contact. Its compact cylindrical housing, typically 18mm in diameter, allows for easy integration into machinery and automated systems where space is at a premium.
A key feature of the GLV18-55-S/59/102/159 is its sensing method. The "S" in the model number often denotes a diffuse reflective type, meaning the sensor emits a light beam and detects the reflection from the target object itself. This design eliminates the need for a separate reflector, simplifying installation. The operating range, implied by the numerical codes, is optimized for mid-distance detection tasks common in packaging, material handling, and assembly lines. The sensor is engineered to deliver consistent performance even in challenging conditions, such as environments with ambient light interference or on objects with varying surface colors and textures.
Electrical specifications are crucial for integration. This model typically functions with a DC supply voltage, commonly within a range like 10-30V DC, ensuring compatibility with standard industrial control systems. It provides a digital output signal, either PNP (sourcing) or NPN (sinking), which interfaces directly with programmable logic controllers (PLCs), counters, or other control units. The output is activated when an object is detected within its preset range. Many variants include a visible or infrared LED light source and often feature a built-in potentiometer for sensitivity adjustment, allowing technicians to fine-tune the sensing distance and minimize false triggers.
The numerical suffix "/59/102/159" likely specifies critical mechanical and connection details. These codes can define the exact housing length, thread type (e.g., M18), cable or connector style (such as a 2-meter PVC cable or a standard M12 connector), and the sensing range. For instance, one number may indicate a 59mm barrel length, while another specifies a 102mm stand-off or a 159mm sensing distance. Consulting the manufacturer's official datasheet is essential to decode these specifics accurately for your application.
Installation and alignment are straightforward but vital for optimal function. The sensor should be mounted securely to avoid vibration-induced errors. For diffuse sensors, ensuring the target object is within the declared sensing range and that the background is non-reflective and distant enough to avoid false detection is important. Regular maintenance involves keeping the lens clean from dust, oil, or debris that could scatter or block the light beam. Checking the electrical connections for corrosion and verifying the output under operational conditions forms part of a good preventative routine.
Applications for the GLV18-55-S/59/102/159 are extensive. In automotive manufacturing, it can count parts on a conveyor or verify the placement of components. In food and beverage, it detects bottles on a filling line. In logistics, it monitors parcel presence at sorting gates. Its robustness makes it suitable for these roles, often featuring an IP67 protection rating against dust and temporary water immersion, which is critical for washdown areas or dusty warehouses.
When selecting a photoelectric switch, comparing the GLV18-55-S/59/102/159 with alternatives is wise. Contrast it with through-beam sensors, which offer longer ranges but require separate emitter and receiver units, or retro-reflective types that use a reflector but may be confused by shiny objects. The diffuse type's balance of simplicity and adequate range makes it a versatile choice. Always cross-reference the required sensing distance, target material, response speed, and environmental conditions with the sensor's published specifications.
In summary, the GLV18-55-S/59/102/159 photoelectric switch is a dependable component for non-contact detection. Understanding its operating principle, electrical interface, mechanical configuration, and correct application guidelines ensures it enhances system reliability and automation efficiency. For precise technical data, wiring diagrams, and configuration options, obtaining documentation directly from the supplier or manufacturer is the most reliable step.
